State whether the following statements are True (T) or False (F):
Holes have phsyical existence like electrons.

State whether the following statements are True (T) or False (F): Electric field is a scalar field.

State whether the following statements are True (T) or False (F): A cell is a source of electrons.

State wheteher the following statements are True (T) or False (F): All insulators are dielectrics.

State whether the following statements are True (T) or False (F): In Boolean algebra (A+A) = A.

State whether the following statements are True (T) or False (F): In the process of charging a body only electrons take active part.

State whether the following statements are True (T) or False (F): Reupulsion is a surer test of electrificiation.

State whether the following statements are True (T) or False (F): A cell is a source of energy, other than electrical.

State whether the following statements are True (T) or False (F): In case of spherical mirror the mirror equation holds good when the aperture of the mirror is small.

State whether the following statements are True (T) or False (F): The emf of a cell is always equal to the terminal p.d of the cell.

State whether the following statements are True (T) or False (F): Ohm's law is the basic law and is sufficient to find the branch currents in any complicated network.